Stenciling apparatus.



H. LEHMKUHL.

STENCILING APPARATUS.

APPLICATION FILED NOV.30,1914. A

1.91689655, Patented Jan. 18, 1916.

9 .lo 1l 12 HELLMUTH LEHMKUHL, 'or sin. ,PA-u1u, rifirmvnsorn..

STENCILING APPARATUS.

` Appnanoh 'ined noverribsfrfso, 1914. 'serial No. 874,894.

Be 1t known that I, HELLMUri-r LEHMf KUHL, a subject of Germany,residing at .1 j vi bt. Paul, in the county of Ramsey and btate ofMinnesota, have inventedpa new and. useful Improvement in Stencil'ing"Apparatus,

of which the following is specification.

The primary object of this invention is the production of a stencilingapparatus,

which is adapted vto facilitate the selection.

of a stencil of required size, and causing it to register accuratelywith the material' to be printed upon, 'so that signs, storeannouncements and the like can be easily and accurately prepared. y e eA further object is the production of simple fand inexpensiveconstruction. Thesey and other objects will be apparent from thefollowing description, in which the accompanying drawing `forms partthereof. 'y y e Figure l is aplan of my invention; Fig. 2 is a side viewof a detail, and Fig'.V '3 is a plan of 'the head piece on an enlargedscale, part of the structurebeing broken away.

In the drawing, A 'indicates a portable base of any suitable dimensionsand material, having two oppositely disposed vertical supports B ofsimilar construction at its hupper end and disposed c at each side. abearing bracket in the form of a plate secured to the side edges of thebase by screws C or other suitable means. A portion of this plateprojecting above the surface of the base is formed with a vertical slotD and a lateral channel E, extending forwardly and forming an opening inextension of said slot for receiving a gudgeon such as F into the slot.Disposed horizontally between the supports B and across the upper end ofthe surface of the base is a head piece Gr in the form of a block madeof wood or other suitable material having polygonal sides H of anysuitable number, the drawing illustrating three, and a cross section ofthe block being substantially a triangle with thel apexes cut olf toproduce straight shoulders Q. The ends of the block are provided withgudgeons F in the form of stud bolts threaded on their outer ends andprojecting from the ends of the head block on its axis. These gudgeonsare adapted to be passed into the slots D of the sup ports B through thechannels E, where t e Specicationf etters Patent." Patented Jan. 18,1916.

Each of these supports consists ofkv blockisrotatably supported and freetobe j lifted, while `remaining in the supports, so that the block canbe turned and any one ofy itssides made to rest` upon the surface,`

offthebase. Along-each longitudinal edge of the block, a scale such as Jis graduated, the graduations of'all of the scales being diiferent forthe purpose` of designating the stencil such as K, which should be usedwith the head piece, there being a stencil or set. of stencils providedfor coperation with each scale. The stencils of each seti or group aremarked for identification so that they can be selected for use with acorresponding scale on the head piece. In F ig.` l the scale which is inposition for use is marked byfthe numeral 3 at` a point substantiallymidway between the ends of the block and the stencil has a, similar`identification markL l near .fits right hand end. This mode t of markingthe scales and stencils is carried out on all of the scales andstencils, different identification marksbeing employed.z

Injuse the material such as a sheet of j paper L is placed `upon thebase in desired position, andthe head piecey made to rest upon4 thematerial, the `head piece serving as a weight to hold the material inposition. Thumb nuts M on the threaded ends of the gudgeons Yare thenscrewedfdown against .the supports B, thus clamping the head piecefirmly upon its supports, while the material L is held in position onthe surface of the base. The stencil can then be adjusted along thelongitudinal straight shoulders Q, of the head piece, and the materialstenciled. The shoulders Q of the head piece form guiding straight edgesalong which the stencil can readily be selectively positioned. Thescales on the head piece are graduated from a center line N to enablethe material being centered on the base. The surface of the base is alsoprovided with scales O, the graduations being numbered or marked from apoint P, indicating a line bi-secting the base vertically to assist inenabling the user positioning the material such as L centrally upon thebase. The base is also graduated with line spaces P, which are numberedfor convenience in selecting a stencil having letters of desired heightor size for use. The operation of the apparatus is extremely simple, aswell as its construction, the material being easily adjusted upon thesurface of the base, where it is held by the head piece inposition,f'so1that a ystencil for preparing a sign of any character.

The scales J are graduated along` the opposite edges of each side of thehead piece,

their order being reversed so that 'by'changf' ing the head piece endfor end two scalesr wedges ofsone vof its sides for assistingvin" areprovided -on each side, making -jdouble the lnumber of different scalesable upon the head piece.

In accordance with the patent statutes, I have described the principlesof loperation of myy invention, together with the apparatus whichV Inowk consider to represent the best embodiment thereof, but I desire tohave it understood that the construction shown is yonly illustrative,and that the in: vention can be carried out by other means and appliedto uses other than those above n setv forth within the scope of thefollowing claims.

Having described my invention, what I claim as new and desire to protectby Letters Patent is n l. In a stenciling apparatus, the co1nbi nationwith a base for supporting material to be stenciled, of a head pieceformed with a plurality of substantially fiat sides having Vscalesgraduated thereon for vassisting in positioning the material to bestenciled lat verally upon the surface of said base, and

supports on said base, in which said head piece is rotatable and movableup and down, whereby said head piece is adapted to be rigidly securedwith either of its sides rest- -fing down upon and holding said materialsecured Hat upon the base, said head having a series of straight edgesagainst any one of which a stencil may be arranged for Vpo- Copies ofthis patent may be obtained for in all 'avail-k p sitioningfthe "samelongitudinally of said of desired size can be selected and employed f fblse...v i 2. In a stenciling apparatus, the combi- -nation withV -a.--base Y for -supporting material to be stenciled, of a head piece formedwith a plurality. of substantially Hat sides having graduated scalesalong the longitudinal said base in which said head piece is changeablysupported end forend and freely movable up and down, whereby said headpiece 'can be positioned with any of its scales on a side facingdownwardly along the surface of said base and with its weight restingand holding the material positioned upon said base. g y

In a stenciling apparatus, the combination with a base for supportingmaterialy to be stenciled, of head .piece formed with a plurality `ofsubstantially flat sides having scales graduated along the longitudinalvedges of'v each ofits sides for assisting in positioning the `materialto be stenciled Vlaterally upon the surface of said base, and supportson said base in which said head l piece is rotatable and changeablyysupported end'for end, whereby saidhead piece can be reversedandrotated withr any of its scales facing downwardly along the surfaceof said base, for` the purposes specified. Y In testimony whereof, Ihave signed my name to this specification, in the presence of twosubscribing witnesses.

HELLMUTH LEHMKUHL. lVitnesses: y

STELLA L. WASCHENBERGER, F. S. BRADBURY.`

Washington, D. C. n

